Observation of New Baryons in the Ξžβˆ’π‘β’πœ‹+β’πœ‹βˆ’ and Ξ0π‘β’πœ‹+β’πœ‹βˆ’ Systems

LHCb collaboration, R.H. O'Neil, M. Richardson-Slipper, C. Vrahas

Research output: Contribution to journal β€Ί Article β€Ί peer-review

Abstract / Description of output

The first observation and study of two new baryonic structures in the final state Ξ0π‘β’πœ‹+β’πœ‹βˆ’ and the confirmation of the Ξžπ‘β’(6100)βˆ’ state in the Ξžβˆ’π‘β’πœ‹+β’πœ‹βˆ’ decay mode are reported using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9  fbβˆ’1. In addition, the properties of the known Ξ*0𝑏, Ξžβ€²βˆ’π‘ and Ξ*βˆ’π‘ resonances are measured with improved precision. The new decay mode of the Ξ0𝑏 baryon to the Ξ+𝑐 πœ‹βˆ’ πœ‹+ πœ‹βˆ’ final state is observed and exploited for the first time in these measurements.
Original languageEnglish
Article number171901
Pages (from-to)1-11
Number of pages11
JournalPhysical Review Letters
Volume131
Issue number17
DOIs
Publication statusPublished - 23 Oct 2023

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